WeatherWX.com
Chester Monthly Climate Averages
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi 24°F Lo 8°F | Hi 27°F Lo 10°F | Hi 43°F Lo 26°F | Hi 54°F Lo 37°F | Hi 67°F Lo 49°F | Hi 78°F Lo 59°F | Hi 83°F Lo 63°F | Hi 81°F Lo 61°F | Hi 74°F Lo 54°F | Hi 58°F Lo 41°F | Hi 43°F Lo 28°F | Hi 28°F Lo 15°F |
| 10 mph | 11 mph | 11 mph | 12 mph | 10 mph | 9 mph | 8 mph | 9 mph | 10 mph | 11 mph | 11 mph | 10 mph |
| 0.3 in | 0.4 in | 0.7 in | 1.3 in | 1.8 in | 2.4 in | 1.5 in | 1.4 in | 1.3 in | 1 in | 0.5 in | 0.5 in |
| 89% | 84% | 78% | 69% | 70% | 75% | 74% | 71% | 66% | 64% | 70% | 83% |
| 57% | 54% | 51% | 46% | 44% | 36% | 28% | 30% | 28% | 33% | 37% | 52% |
| 30.2 in | 30.2 in | 30.1 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 29.9 in | 30.0 in | 30.0 in | 30.1 in | 30.1 in |
| 23 | 21 | 24 | 22 | 23 | 22 | 25 | 25 | 25 | 25 | 25 | 22 |
| 5 | 4 | 5 | 6 | 8 | 8 | 6 | 6 | 5 | 5 | 4 | 6 |
| 3 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 2 | 2 | 1 |
| 42 | 44 | 51 | 55 | 59 | 67 | 85 | 82 | 80 | 78 | 68 | 50 |
January |
February |
March |
April |
May |
June |
July |
August |
September |
October |
November |
December |
| Hi -5°C Lo -13°C | Hi -3°C Lo -12°C | Hi 6°C Lo -3°C | Hi 12°C Lo 3°C | Hi 19°C Lo 9°C | Hi 25°C Lo 15°C | Hi 28°C Lo 17°C | Hi 27°C Lo 16°C | Hi 24°C Lo 12°C | Hi 14°C Lo 5°C | Hi 6°C Lo -2°C | Hi -2°C Lo -10°C |
| 17 km/h | 17 km/h | 18 km/h | 19 km/h | 16 km/h | 15 km/h | 13 km/h | 14 km/h | 16 km/h | 17 km/h | 17 km/h | 17 km/h |
| 7 mm | 10 mm | 17 mm | 32 mm | 46 mm | 60 mm | 38 mm | 37 mm | 32 mm | 26 mm | 12 mm | 13 mm |
| 89% | 84% | 78% | 69% | 70% | 75% | 74% | 71% | 66% | 64% | 70% | 83% |
| 57% | 54% | 51% | 46% | 44% | 36% | 28% | 30% | 28% | 33% | 37% | 52% |
| 1021 mb | 1022 mb | 1018 mb | 1014 mb | 1013 mb | 1011 mb | 1013 mb | 1013 mb | 1015 mb | 1015 mb | 1018 mb | 1020 mb |
| 23 | 21 | 24 | 22 | 23 | 22 | 25 | 25 | 25 | 25 | 25 | 22 |
| 5 | 4 | 5 | 6 | 8 | 8 | 6 | 6 | 5 | 5 | 4 | 6 |
| 3 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 2 | 2 | 1 |
| 42 | 44 | 51 | 55 | 59 | 67 | 85 | 82 | 80 | 78 | 68 | 50 |
| Month |
| Avg. Temperatures |
| Avg. Wind Speed |
| Avg. Precipitation |
| Average Humidity |
| Avg. Cloud Cover |
| Pressure Average |
| Average Dry Days |
| Avg. Precip. Days |
| Avg. Snow Days |
| Average Fog Days |
| Average UV Index |
| Avg. Hours of Sun |
Averages are based on historical weather data from the past 10 years.